Hm. It's sad that he died that way. Yeah, he could have taken better care of himself given that he had a known heart condition, but he's not alive to blame. I remember the days where I'd play Pokemon Red on my old ass Gameboy (it looked like a green brick). I'd play it from the moment I woke up to the instant I fell asleep, non-stop. I felt like crap the next day, so I implemented food, bathroom, and nap breaks during my hardcore gaming sessions. This continued on with other games as I got older.
But yeah. Take breaks during your gaming sessions. Take care of yourself. Write that to Celestia.